Howdy Logo
Glossary Hero image

The Howdy Glossary

Search terms in Glossary

Geometric Description Language

Geometric Description Language (GDL) is a programming language for creating 3D models with ARCHICAD software. GDL provides an interface that lets architects and designers develop custom parametric components such as doors, windows, and other building elements. These components can behave intelligently in the context of a virtual 3D building model, responding to different design configurations while maintaining accurate geometry and relationships within their architectural environment. The language employs concepts like object-oriented programming and declarative scripting to allow for efficient development of complex BIM elements in ARCHICAD projects.